AKG PZM6 D Hemispherical Boundary MicrophoneThe PZM6 D hemispherical boundary layer mic is ideal for miking full orchestras, individual musical instruments, security, teleconferencing, film, and video. A very small metal housing makes the PZM6 D even more inconspicuous than the PZM30 D. Two selectable frequency responses (flat rising) provide greater flexibility in mic placement and sonic character. The rising position delivers bright sound without boosting high frequencies on the recording